How can I change the address that all the Conjured Referrals emails are sent from?
For deliverability and anti-spam reasons, Conjured Referrals sends all emails from firstname.lastname@example.org and uses your email address as a reply-to. In order to have the emails sent from your email address, you'll need to sign up for a free Sendgrid account and integrate it on the Settings page of the app.
Note that all test emails will still come from a @conjured.co email address in order to avoid having them count against any limits you may have with Sendgrid.
To integrate Sendgrid, you'll need to generate a "Full Access" API key by going to Settings > API Keys within your Sendgrid account. Create a new key, and copy it.
Head over to the Integrations page in Conjured Referrals and scroll to the "Sendgrid Integration" section. Click the "Enable" button, paste your API Key in, and save your changes.
The last thing you may want to consider is enabling Domain Authentication within Sendgrid for the domain you plan to send your emails from. This will ensure email deliverability for all the emails sent by the app through your Sendgrid account. For more information, refer to the Sendgrid tutorial, How to set up domain authentication.